Shoe-supporting jack.



Patented July 13, 1915.

STATES PATENT OFFICE.

nmmnw EPPLEB, or LYNN, nsssacnusnrrs, essrcuon T0 UNITED SHOE nnw 'annsnr.

Specification of Letters Patent.

IACEINERY COMPANY, OF PATERSON, JER$EY,A CORPORATION OF SHOE-SUPPORTIN G JACK.

Patented July 13, 1915.

Original application filed Kay 8, 1906, Serial No. 315,024. Divided and this application filed September 16,

' "1911. Serial No. 849,61

ing Jacks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same.

The present invention relates to machines for operating upon boots and shoes and more particularly to the shoe supporting jacks used in connection with such machines.

The present invention is shown as applied to a sole-leveling machine disclosed in the patent to Eppler, No. 1,004,155, dated September 26, 1911, from which thepreeent in vention has been divided, but" the present inventiqn isfiit limited in its use to the part'fifilar type of machine disclosed in thispatent; I The pbject of the present invention is to provideia shoe supporting'jack of a simple construction which may be readily and fdesc'ribed and claimed, the advantages of which will be apparent. to those skilled in the art from/the following description.

In theficompanying drawings illustratingthe preferred form of the invention, Figure 1 represents a side elevation of the jack with a shoe supported thereon. Fig. 2 is a detail view in side elevation partly in section of the toe support on the jack a-nd the mechanism for adjusting the same. Fi 3 is a. detail sectionalview taken on the inc 7- -7, of Fig. 2.

The jack shown in the illustrated embodiment of the invention is designed primarily for use in leveling machines which are employed for operating on widely varying sizes and styles of shoes. For this reason it is essential that the jack shall be capable oi :i speedy adjustment to accommodate it to (hill-rent classes of work. In the present embodiment of the invention the suitable manner upon the main frame of the can be moved longitudinally and rocked "laterally to present all portions of the sole :of a shoe supported thereon to the action of various adjustments of the jack are secured by moving the toe post relatively to the heel post. To this end the toe post has provision for a vertical adjustment and a longitudinal adjustment toward and from the heel post: In order to compensate for any displacement of the toe post relatively to the heel post when these adjustments are made, an angular adjustment of theme 0st is provided. This adjustment is obtaine by forming the toe post in two parts provided respectively with complemental arcuate ways which enable the toepost to be adjusted singularly about an axis lying in proximity to the upper or working surface of the toe rest.

The shoe supporting jack comprises a frame 2 provided with suitable heel and toe Y supports and pivotally mounted on the jack supporting frame 4 which is pivoted in any machine, the arrangement of the pivotal supports of the jack frame 2 and the jack supporting frame 4 being such that the jack the leveling device.v 4 1 LThe heel support for the jack is indicated at" 5 and is the same. in construction and mode of operation-as the heel post of the jack disclosed in the patent to William C. Meyer, No. 677,550, dated July 2. 1901. to which patent reference is made for a full disclosure thereof.

The toe support of the jack is indicated at 6 and consists of a block having its upper surface suitably shaped to support the toe of the lasted shoe. To enable the toe support to I be adjusted for diflerent styles of shoes, it is provided on its lower surface with a pro jecting grooved rib 8 which is received inn correspondingly shaped groove in a block 9. the upper surface of which is curved to fit a. corresponding surface on the toe support. These surfaces together with the cotiperating surfaces of the rib 8 and groove in the block 5) are concentric with an axis which lies substantially in the upper surface of the toe rest so that an angular adjustment of the too rcslcan he made without producing any substantial movement of the upper surface of the toe rest toward or from the heel support. The toe rest is held in adjusted support and to this end the block 9 is held in adjusted position on a-supporting lever 11 by means of a clamping screw 13 passing through the--block and bearing against the lever. The lever 11 is pivotally mounted at '14 upon the jack frame 2. The rear end of the lever 11 "is pivotally connected at 14 to the jack frame 2 and the forward end of the lever rests upon a vertical adjusting rod 15 by means of which the forward end of the lever can be raised or lowered. The rod 15 passes through a bevel gear 16 and has a screw threaded engagement therewith and is provided with a vertical groove engaged by a screw 17, whereby the rod is prevented from turning and can be raised and lowered by rotating the bevel gear 16. The bevel gear 16 meshes with a bevel gear 18 secured to a short horizontal shaft 19 upon the outer end of which is secured a hand wheel 20 in convenient po 'sition to be grasped by the operator. The

rod 15, the screw 17 and shaft 19 are mounted in a frame 22 secured to the jack frame 2 and the bevel gear 16 is engaged at both ends of its hub by the frame 22 so as to be held against longitudinal movement, as is clearly shown inFig. 3. This construction provides a simple and compact arrangement for readily adjusting the height of the toe post and one which renders unnecessary a separate mechanism for locking the toe post in each adjusted position.

The nature and scope of the present invention having been indicated and a machine embodying the various features thereof in its preferred form having been specifically described, what is claimed is I 1. A shoe supporting jack, having, in com-.

bination, a heel support, a toe support, a pivoted lever upon which the toe support is mounted, an ad usting ro\. engaging the lever arranged to move the lever to adjust the toe support vertically, a bevel gear mounted on the adjusting rod and having a screw threaded engagement therewith, means for holding the gear against longitudinal movement with the adjusting rod, a hand oper ated shaft arranged'at an angle tothe adjusting rod, and a bevel gear secured to said shaft and meshing with the bevel gear on the adjusting rod.

2. A shoe supporting jack, having, in

combination, aheel support, a toe support,

a block in which the toe support is mounted so as to be capable of an angular adjustment, a lever upon which the block is movably mounted to permit longitudinal adjustment of the toe support, and means for moving the lever to produce a vertical adjustment of the toe support.

ANDREW' EPPLER.

Witnesses Bpn'roN W. CARY, EMIpY M. N UNN. 

